Theorem 2.9 (see Mothebe-Uys [1]}) 
Let \(l, d\)  be positive integers such that \(1\le l\le t.\)  If \(x\in {C}^{\otimes (t-1)}_{n},\) then \(x_l^{2^{d}-1}\mathsf {q}_{(l,\,t)}(x)\in {C}^{\otimes t}_{n + 2^{d}-1}.\)

